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SuttonStorm

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Posts posted by SuttonStorm

    Snow Watch: London, Ea & Se England

    in Spring Weather Discussion

    Posted

    Anyone know what Heathrow airport tends to be like in snow situations? Due on a flight that lands in there at 8am tomorrow morning and wondering how likely delays etc are. Also trains etc then into central London, I assume that could be difficult too?

    Hi Globe

    Heathrow tends to be OK - financially it is really bad for them to be affected by the weather (they screw things up quite well already without any meterological assistance!!!!) - you should be OK.

    You have a couple of options about getting to london - the overground to Paddington is the quickest, but may be affected by snow, so you can always revert to the Piccadilly Line tube which should be running.

    All the best

    SS

    Historical Air Pressure Data

    in Historic Weather

    Posted

    In these days of "warming trends" and the general consensus that greenhouse gasses are involved in climate change, and in particular temperature, has there been any study that looks at the trends in air pressure over the years?

    I know it is a very simplisitic view, and I appologise to those purists who will want to jump on it, but GENERALLY, our geographical position means lower pressure = more wind and rain (from an Atlantic-type direction) and higher pressure = more settled, clearer weather with more extremes in temperature, and a more Continental feed.

    In addition to the recorded rise in temperatures (more extereme in some areas than others), has there been any significant alteration to the pressure trends at all? If so, are these indicative of a change in weather patterns?

    A few questions there I know, but I hope someone will be able to answer some of it! :o

    SS

    Storms 15th-16th July

    in Storms & Severe Weather

    Posted

    That storm building over Northern France really is going to become a monster if it carries on as it is now.... :) If the wind vectors havn't altered substantially it should cross the channel and hit the UK around Littlehampton, moving NNW through Guildford and onto London. Bigger than the last one by the look of it!

    SS

    Storms 15th-16th July

    in Storms & Severe Weather

    Posted

    That was a fantastic storm... saw it build up on the radar from around the Solent, gaining power as it passed over the land.

    Looking ahead to later, there is a similar build up over the water around the peninsular beside the Channel Islands (prob got a name but I don't know it :( ) which was where the previous one built up to start with.......BUT....this one looks much more intense already ! :) ! Worth keeping an eye on!

    SS :)

    Rookie Snow Question

    in Spring Weather Discussion

    Posted

    It also depends on the moisture content of the air, or Dew Point (there is also the wet-bulb temp, but I haven't a scooby what that is about - similar I think :) ) The dew point is the temperature at which the air would become saturated. If there is a high moisture content in the air, then any falling snow will melt quickly before making it to the ground. If the air is dry (as you would get after a cold front has passed) then the snow will not melt whilst falling so easily. That is why it is possible to have falling snow at about 5c, whilst on occassions you get rain at barely above freezing.

    As Enforcer said, it also helps if the ppn is intense as that drags down colder air, with evaporative cooling, which is the cooling effect on the air when its energy is used up trying to evaporate the falling ppn.

    Those are my interpretations (from a complete novice), so anyone able to put me right?

    SS

    Snow/wintry Precipitation Reports, February 23rd 2006

    in Weather reports

    Posted · Edited by SuttonStorm

    Sutton has had fine but quite heavy snow all morning, giving grass an icy covering, but not measurable !!! Banstead which is about 50m higher than here is looking quite wintery, with settling snow on cars, grass pavement and trees.

    Current temp + 1.3c

    Current DP - 0.31c (these measurements have been steady all morning)

    SS

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